Baseless and Based

Opposite meaning words

Baseless adjective - Having no basis in reason or fact.

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Based is an antonym for baseless in without substantiation topic.

Nearby Word: baselessness

Based adjective - Having a base.

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Baseless is an antonym for based.

Nearby Words: base, basing

Cite this Source

Based and Baseless. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/baseless/based

Baseless & Based. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/baseless/based>.

Based or Baseless. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/baseless/based.

Google Ngram Viewer shows how "baseless" and "based" have occurred on timeline